Disk assembly for disk crushers



May 18 1926.'

` C. B. ANDREWS DISK ASSEMBLY FOR DIS-K cRUsHEls Filed Nov. 22. 1923 Patented .Stray lit, lit-ld.

essere? UNH'ED S'l'ei'llflt PATENT QFFECE.

CHARLES 1B. ANDREWS, OF HET-XE BREDGE, NEW" JERSEY, ASSGNOR T0 TAYLOR- WHARTON IRON AND STEEL CMEANY PORATION OF NEW JERSEY.

, or HIGH naines, NEW ausser, A con- DISK ASSEMBLY FR DSK CRUSHERS.

Application fled'Noveniber 22, 1923.

quire more or less frequent replacement. Heret-ofore, and before my invention, this has been quite a laborious task and entailedl considerable loss of time, and this is espe-' cially true of the outer disk assembly.

Objects of the invention are to simplify the replacement of grinding disks by pro-.

viding an integral or one-piece locking member having elements springing therefrom whereof one abuts the outer wall of the disk head and whereof the other confronts the outer wall of the disk and is responsive to deflection to lock the disk to the head; to provide a locking annulus of substantially Z section, that is to say a ring having reverse radial offsets whereof one seats against and co-operates with the outer wall of' the disk head and whereof the other is capable of more or less springing action with relation to the disk, under the engaging eort of quickacting positive securing devices. By thus obviating the use of two or more screw threaded locking rings, or the like. as obtains under the usual practice, I simplify the disk assembly; simplify the shape of the grinding disk; and reduce the cost of manufacture.

The accompanying drawing is a sectional view of a grinding disk assembly embodying the invention, the inner disk and the feed spout being indicated in dotted lines to show the general arrangement and relation of the parts.

Referring to the drawing, the numeral 5 represents the outer disk and 6 represents its complementa] head or carryingr portion. The usual practice is to form the disk with central flanged portion which is secured relatively to the head by screw threaded rings or nuts. This practice has the disadvantage th atgrit finds its way into the screw threads and makes it difficult to assemble and disassemble the parts.

According to my invention, the dish shape disk 5 has a large feed opening 7 andrequiresl no iiange. ln lieu of this theouter marginal wall of the feed opening pre's'ei'its a substantially flat wall 8 inwardly ofthe bore of the disk head. This construction Grinding disks suffer heavy wear in service and re Serial No. 676,285.

obviously simplifies casting with a resultant reduction in cost.

rllhe disk and its complemental head are relatively secured by a solid locking ring` 9 of substantially Z shape in crosssection, that is to say, it is formed as a unit with inner and outer reverse radial offsets 10 and l1. The ring 9, in service, fits the feed opening of the disk head, in which position the inner ofi'set lOconfronts the outer wall of the disk, and the outer offset 11 is in abutting relation with the youter wall of the disk head. Before the application of locking pressure there is an initial clearance between the offset l() and the disk. This fact and the more or less inherent spring quality of the locking ring due to its peculiar construction,l and dependcnt upon its section, provides for relative deflection of the parts, under exerted pressure, to lock or clamp the disk in a positive manner to the head. The source of pressure may be any device capable of mutual engagement with the offset 10 and the disk. I prefer, however, to employ bolts l2. rlfhe heads of the bolts are countersunk so as to be within the finished plane of the disk, and the outer ends of the bolts pass through round or elongated slots in the offset 10 and co-operate with lock nuts 13.

It will be obvious to those skilled in the art that the described disk assembly is adapted for use in both vertical and horizontal mills.

Having described my invention, I claim l. An outer disk assembly for grinding mills of the disk action type, comprising, in combination, a disk, a disk head, and means for relatively securing them, said means embodying an annulus having an integral element responsive to deflection, and means for deiiecting it to lock the disk to the head.

2. An outer disk assembly for grinding' mills of the disk actior type, comprising, in combination, a disk, a disk head, and means for relativelyY securing them, said means embodying a ring which fits the feed opening of the disk head and has reverse radial oft'- sets springing therefrom whereof one abats the disk head and whereof theother is responsive to clamping to'lock theffdisk to the head, and means for clamping it.'

'3. An outer disk assembly for grinding mills of the disk action type, comprising, in

combination, a disk, a disk head, each of said elements having a hearing portion in proximity with its teed opening, a locking ring having reverse integral flanges which cooperate with the respective bearing portions, the flange which confronts the disk being initially spaced therefrom, and means tending` to draw the disk into engagement with the spaced fiange.

4. in outer assemhl)v disk 'tor grinding mills of the disk action type, comprising, in combination, a disk, a disk head, a Z section locking ring` having a portion engagingV the outer Wall ot' the disk head, a portion innerlying the disk head, and a portion cooperatiiilg` the outer Wall oi` the disk, and means tor securing said elements in assembled relation.

5. An outer disk assembly for grinding mills of' the disk action type, comprising, in combination, a disk, a disk head, a substantially Z section locking ring innerlying the disk head and whereof one terminal ahuts the outer Wall of the disk head and whereof the other is in spaced relation with the disk, and quick acting locking elements for securing said parts in assembled relation.

6. An outer disk assembly for grinding mills ot' the disk action type, comprising, in combination, a disk having a large central t'eed opening the delining wall ot which has apertures for the passage of securing devices, a disk lie-ad having a feed opening, and means tor securing the disk to the head, said means including a locking ring which lits the feed opening of the disk head and has reverse radial offsets Whereotoneabuts the outer Wall of the disk head and whereof the other otllset confronts' the apertured Wall portion ot the disk and is initially spaced therefrom and has registering apertures, and securing devices penetrating both sets of apertures lor effecting relative clamping aetion of the disk and head through the 1nediuin of the locking ring.

ln testimony.Whereofl affix my signature.

CHRLES B. ANDREWS. 

